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首页> 外文期刊>Journal of Ichthyology >Dynamics of Abundance of Eggs and Larvae of Common Fish Species in the Central Part of the Eastern Central Atlantic
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Dynamics of Abundance of Eggs and Larvae of Common Fish Species in the Central Part of the Eastern Central Atlantic

机译:中大西洋东部中部常见鱼类种类的卵和幼虫的丰度动态

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摘要

Data on variation in the abundance of mass fish species at early stages of ontogenesis in different areas of the Eastern Central Atlantic in warm (June-November) and cold (December-May) seasons of 1994—2012 have been analyzed. The representatives ofthe mass species in the region are European pilchard Sardina pilchardus, common scad Trachurus trachurus, chub mackerel Scomberjaponicus, round sardinella Sardinella aurita, Cunene horse mackerel T. trecae, and Atlantic bonito Sarda sarda. Within the economic zone of Morocco, variations in abundance of the representatives of the subtropical fauna (S. pilchardus, T. trachurus, and S. japonicus) at early stages of ontogenesis are similar over the entire area under study (32°— 21°N). In the area of Mauritania (21°-16°N), variations in the abundance of the mass fish species of the tropical fauna (S. aurita, T. trecae, and S. sarda) at early stages of ontogenesis cannot be unambiguously compared with such variations in the area of Morocco because Senegal-Mauritanian populations of the species inhabit waters of different states and are not completely assessed by our surveys.
机译:分析了1994-2012年温暖(6月至11月)和寒冷(12月至5月)季节东中大西洋不同地区本体发育早期鱼类种群多样性的变化数据。该地区主要物种的代表是欧洲沙丁鱼Sardina pilchardus,普通Trachurus trachurus,鲭鱼Scomberjaponicus,圆形沙丁鱼Sardinella aurita,Cunene鲭鱼T.trecae和Atlantic bonito Sarda sarda。在摩洛哥的经济区中,在本体发育早期,亚热带动物群(沙丁鱼,沙棘,日本沙门氏菌)代表的丰度变化在整个研究区域(32°至21°)相似N)。在毛里塔尼亚(北纬21°-16°)地区,不能明确比较在本体发育早期热带动物(S. aurita,T。trecae和S. sarda)的大型鱼类物种的丰度变化。由于摩洛哥的塞内加尔-毛里塔尼亚物种种群居住在不同州的水域,因此我们对摩洛哥的分布情况有所不同,我们的调查并未对其进行完全评估。

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